)
Delhi Sero Survey indicates herd immunity against COVID-19
The Indian capital is heading towards herd immunity against COVID-19. According to a report, the latest Sero Survey has found that 50 to 60 percent of people in one district have developed antibodies to the virus.
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)